5 minutes, 3 minutes, 2 minutes, 1 minute and 30 seconds. (6 of each). Use sand timers for challenges, games, concentration, behaviour management, time out etc. Sand timers add fun to many games by setting time limits, and can help children overcome distraction in simple tasks : "You have a minute to get your books out/ write your name/etc.", or "You have five minutes to finish that task..."